·502·
Installation manual
CNC 8055
CNC 8055i
12.
LOGIC CNC INPUTS AND OUTPUTS
SOFT: V02.2X
Spindle logic inputs.
12.3 Spindle logic inputs.
This CNC can handle 2 spindles: a main spindle and a second spindle. They both can be operative
simultaneously, but only one can be controlled at a time. This selection can be made via part-
program by means of functions G28 and G29.
LIMIT+S (M5450) LIMIT-S (M5451) Cabezal principal
LIMIT+S2 (M5475) LIMIT-S2 (M5476) Segundo cabezal
The CNC uses this signal while searching home when the spindle changes to working in closed loop
(M19). The CNC only considers the signals for the currently selected spindle.
The PLC sets one of the signals high to tell the CNC that the spindle has overrun its range of travel
in the positive (+) or negative (-) direction.
In this case, the CNC stops axis feed and spindle rotation and displays the corresponding error on
screen.
DECELS (M5452) Main spindle
DECELS2 (M5477) Second spindle
The CNC uses this signal while searching home when the spindle changes to working in closed loop
(M19). The CNC only considers the signals for the currently selected spindle.
The PLC sets this signal high to indicate to the CNC that the reference search switch is pressed.
When this signal is activated in the reference search mode the CNC decelerates the spindle,
changing the rapid approach speed indicated by the spindle parameter REFEED1 (P34), with the
slow feedrate indicated by the spindle parameter REFEED2 (P35). After decelerating, it accepts the
following reference signal from the spindle feedback systems as being valid.
SPDLEINH (M5453) Main spindle
SPDLEIN2 (M5478) Second spindle
The CNC considers these 2 signals at all times so both spindles can be controlled by the PLC.
When the PLC sets this signal high, the CNC outputs a zero velocity command for the spindle.
SPDLEREV (M5454) Main spindle
SPDLERE2 (M5479) Second spindle
The CNC considers these 2 signals at all times so both spindles can be controlled by the PLC.
When the PLC sets this signal high, the CNC reverses the programmed spindle turning direction.
If while being this signal high, a block containing an M3 or M4 is executed, the spindle will start turning
in the opposite direction.
SMOTOFS (M5455) Main spindle
SMOTOFS2 (M5480) Second spindle
The SMOTIME (P46) filter set for the main and second spindles with parameter P46 can be canceled
from the PLC.
This SMOTIME filter will be activated or deactivated at the beginning of the block. If one of these
logic inputs is activated or deactivated while the CNC is overlapping blocks being executed in round
corner, it will be ignored until that operation is finished.
SERVOSON (M5457) Main spindle
SERVOSO2 (M5482) Second spindle
These signals are controlled by the PLC and the CNC will process them only when the spindle is
working in closed loop (M19). Its treatment depends on the value assigned to spindle parameter
DWELL (P17).
DWELL=0
If spindle parameter DWELL (P17) has been set to "0", the CNC will check the status of the
SERVOSON signal at the time when the ENABLE signal is to be output.
If the SERVOSON signal is high, the CNC will allow the spindle to rotate by activating the ENABLE
signal and providing the required velocity command output.
To Next Page
Loading...
